.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 20px 24px;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-red);
}

.menu {
  display: flex;
  gap: 30px;
}

.menu a {
  text-decoration: none;
  font-size: 14px;
  color: var(--accent-blue);
  transition: color 0.2s ease;
  padding: 6px 10px;
  border-radius: 999px;
}

.menu a:hover {
  color: var(--text);
  background: rgba(42, 127, 255, 0.22);
}

.menu a:focus-visible {
  outline: 1px solid var(--accent-blue);
  outline-offset: 2px;
}

.lang-switcher {
  display: flex;
  gap: 8px;
}

.lang-switcher button {
  border: 1px solid currentColor;
  background: transparent;
  color: var(--text);
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.lang-switcher button[data-lang="en"] {
  color: var(--accent-red);
}

.lang-switcher button[data-lang="ru"] {
  color: var(--accent-blue);
}

.lang-switcher button.active {
  background: rgba(255, 255, 255, 0.08);
}

.lang-switcher button:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.12);
}

.lang-switcher button:focus-visible {
  outline: 1px solid currentColor;
  outline-offset: 2px;
}